Download Energy Transformations - Science with Mrs. Sinning

Types of Energy
Types of
Energy
Kinetic Energy
• Energy of motion
Kinetic Energy
• Depends on mass and speed
Potential
• Energy of position
• Comes from position
Mechanical Energy
• The sum of potential and kinetic energy
What is the GPE of a 50 N object that
is at a height of 4.3 m?
What is the KE of a 4,000 kg elephant
running at 3 m/s?
Troy has a mass of 45 kg and is going cliff diving. The
cliff is 40 m high. What is his PE?
Chemical
• Energy stored in the molecules of a substance
(a type of potential)
Electrical
• Energy from the movement of electrons
• Another term for electricity
Nuclear
• Energy that comes from splitting (fission) or
combining (fusion) the nuclei
Radiant
• Light Energy
• Also known as electromagnetic energy
Thermal
• Heat energy
Sound
• Energy traveling as waves that you can hear
Energy Transformations
Energy Transformation
• What does transform mean?
– Change
• What is an energy transformation?
• The conversion (change) of energy from one
kind to another
Examples of Energy Transformations
• Pe  KE  PE
– A pendulum
– A roller coaster
More Examples
• Chemical  KE or electrical
– The food you eat allows you to move
– The battery in your iPod is changed into electrical
energy
More Examples
• Electrical  Sound and Light
– Your alarm clock
More Examples